Hayward, J. New Zealand government and politics (Sixth edition.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHayward, Janine. New Zealand Government and Politics. Sixth edition.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHayward, Janine. New Zealand Government and Politics. Sixth edition.
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